80672620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{263}}^1\times {\mathrm{313}}^1$

素因数の和:599

約数の個数: 72

約数和(自身を含む): 198453024

約数和(自身を除く): 117780404

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 263, 313, 490, 526, 626, 980, 1052, 1252, 1315, 1565, 1841, 2191, 2630, 3130, 3682, 4382, 5260, 6260, 7364, 8764, 9205, 10955, 12887, 15337, 18410, 21910, 25774, 30674, 36820, 43820, 51548, 61348, 64435, 76685, 82319, 128870, 153370, 164638, 257740, 306740, 329276, 411595, 576233, 823190, 1152466, 1646380, 2304932, 2881165, 4033631, 5762330, 8067262, 11524660, 16134524, 20168155, 40336310, 80672620]

約数ペア:

[(1, 80672620), (2, 40336310), (4, 20168155), (5, 16134524), (7, 11524660), (10, 8067262), (14, 5762330), (20, 4033631), (28, 2881165), (35, 2304932), (49, 1646380), (70, 1152466), (98, 823190), (140, 576233), (196, 411595), (245, 329276), (263, 306740), (313, 257740), (490, 164638), (526, 153370), (626, 128870), (980, 82319), (1052, 76685), (1252, 64435), (1315, 61348), (1565, 51548), (1841, 43820), (2191, 36820), (2630, 30674), (3130, 25774), (3682, 21910), (4382, 18410), (5260, 15337), (6260, 12887), (7364, 10955), (8764, 9205)]